Every month without fail I get lots of EWCM before ovulation and ovulation pain - I've had a + OPK the past 2 months when the pain began.
This month, nothing! No EWCM, no pain.
I've had mega sore nipples this past week so I'm wondering if I O'd with no EWCM? I didn't do any OPK because I usually start them when the appears 
If I assumed I just didn't O this month but the nipple thing has thrown me?